/**
 *
 * @file EncryptUtil.ts
 * @author dream
 * @description 一些加密解密方法
 *
 */

export module EncryptUtil {
    /**
     * AES 加密
     * @param msg
     * @param key
     * @param iv
     * @returns
     */
    export function aesEncrypt(msg: string, key: string, iv: string): string {
        let encrypt = CryptoJS.AES.encrypt(msg, utf8Parse(key), {
            iv: utf8Parse(iv),
            mode: CryptoJS.mode.CBC,
            padding: CryptoJS.pad.Pkcs7,
        });
        return encrypt.toString();
    }

    /**
     * AES 解密
     * @param str
     * @param key
     * @param iv
     * @returns
     */
    export function aesDecrypt(str: string, key: string, iv: string): string {
        let decrypt = CryptoJS.AES.decrypt(str, utf8Parse(key), {
            iv: utf8Parse(iv),
            mode: CryptoJS.mode.CBC,
            padding: CryptoJS.pad.Pkcs7,
        });
        return CryptoJS.enc.Utf8.stringify(decrypt);
    }

    function utf8Parse(utf8Str: string): string {
        return CryptoJS.enc.Utf8.parse(utf8Str);
    }

    export function md5(md5str: string) {
        var createMD5String = function (string: string) {
            var x = Array();
            var k, AA, BB, CC, DD, a, b, c, d;
            var S11 = 7,
                S12 = 12,
                S13 = 17,
                S14 = 22;
            var S21 = 5,
                S22 = 9,
                S23 = 14,
                S24 = 20;
            var S31 = 4,
                S32 = 11,
                S33 = 16,
                S34 = 23;
            var S41 = 6,
                S42 = 10,
                S43 = 15,
                S44 = 21;
            string = uTF8Encode(string);
            x = convertToWordArray(string);
            a = 0x67452301;
            b = 0xefcdab89;
            c = 0x98badcfe;
            d = 0x10325476;
            for (k = 0; k < x.length; k += 16) {
                AA = a;
                BB = b;
                CC = c;
                DD = d;
                a = FF(a, b, c, d, x[k + 0], S11, 0xd76aa478);
                d = FF(d, a, b, c, x[k + 1], S12, 0xe8c7b756);
                c = FF(c, d, a, b, x[k + 2], S13, 0x242070db);
                b = FF(b, c, d, a, x[k + 3], S14, 0xc1bdceee);
                a = FF(a, b, c, d, x[k + 4], S11, 0xf57c0faf);
                d = FF(d, a, b, c, x[k + 5], S12, 0x4787c62a);
                c = FF(c, d, a, b, x[k + 6], S13, 0xa8304613);
                b = FF(b, c, d, a, x[k + 7], S14, 0xfd469501);
                a = FF(a, b, c, d, x[k + 8], S11, 0x698098d8);
                d = FF(d, a, b, c, x[k + 9], S12, 0x8b44f7af);
                c = FF(c, d, a, b, x[k + 10], S13, 0xffff5bb1);
                b = FF(b, c, d, a, x[k + 11], S14, 0x895cd7be);
                a = FF(a, b, c, d, x[k + 12], S11, 0x6b901122);
                d = FF(d, a, b, c, x[k + 13], S12, 0xfd987193);
                c = FF(c, d, a, b, x[k + 14], S13, 0xa679438e);
                b = FF(b, c, d, a, x[k + 15], S14, 0x49b40821);
                a = GG(a, b, c, d, x[k + 1], S21, 0xf61e2562);
                d = GG(d, a, b, c, x[k + 6], S22, 0xc040b340);
                c = GG(c, d, a, b, x[k + 11], S23, 0x265e5a51);
                b = GG(b, c, d, a, x[k + 0], S24, 0xe9b6c7aa);
                a = GG(a, b, c, d, x[k + 5], S21, 0xd62f105d);
                d = GG(d, a, b, c, x[k + 10], S22, 0x2441453);
                c = GG(c, d, a, b, x[k + 15], S23, 0xd8a1e681);
                b = GG(b, c, d, a, x[k + 4], S24, 0xe7d3fbc8);
                a = GG(a, b, c, d, x[k + 9], S21, 0x21e1cde6);
                d = GG(d, a, b, c, x[k + 14], S22, 0xc33707d6);
                c = GG(c, d, a, b, x[k + 3], S23, 0xf4d50d87);
                b = GG(b, c, d, a, x[k + 8], S24, 0x455a14ed);
                a = GG(a, b, c, d, x[k + 13], S21, 0xa9e3e905);
                d = GG(d, a, b, c, x[k + 2], S22, 0xfcefa3f8);
                c = GG(c, d, a, b, x[k + 7], S23, 0x676f02d9);
                b = GG(b, c, d, a, x[k + 12], S24, 0x8d2a4c8a);
                a = HH(a, b, c, d, x[k + 5], S31, 0xfffa3942);
                d = HH(d, a, b, c, x[k + 8], S32, 0x8771f681);
                c = HH(c, d, a, b, x[k + 11], S33, 0x6d9d6122);
                b = HH(b, c, d, a, x[k + 14], S34, 0xfde5380c);
                a = HH(a, b, c, d, x[k + 1], S31, 0xa4beea44);
                d = HH(d, a, b, c, x[k + 4], S32, 0x4bdecfa9);
                c = HH(c, d, a, b, x[k + 7], S33, 0xf6bb4b60);
                b = HH(b, c, d, a, x[k + 10], S34, 0xbebfbc70);
                a = HH(a, b, c, d, x[k + 13], S31, 0x289b7ec6);
                d = HH(d, a, b, c, x[k + 0], S32, 0xeaa127fa);
                c = HH(c, d, a, b, x[k + 3], S33, 0xd4ef3085);
                b = HH(b, c, d, a, x[k + 6], S34, 0x4881d05);
                a = HH(a, b, c, d, x[k + 9], S31, 0xd9d4d039);
                d = HH(d, a, b, c, x[k + 12], S32, 0xe6db99e5);
                c = HH(c, d, a, b, x[k + 15], S33, 0x1fa27cf8);
                b = HH(b, c, d, a, x[k + 2], S34, 0xc4ac5665);
                a = II(a, b, c, d, x[k + 0], S41, 0xf4292244);
                d = II(d, a, b, c, x[k + 7], S42, 0x432aff97);
                c = II(c, d, a, b, x[k + 14], S43, 0xab9423a7);
                b = II(b, c, d, a, x[k + 5], S44, 0xfc93a039);
                a = II(a, b, c, d, x[k + 12], S41, 0x655b59c3);
                d = II(d, a, b, c, x[k + 3], S42, 0x8f0ccc92);
                c = II(c, d, a, b, x[k + 10], S43, 0xffeff47d);
                b = II(b, c, d, a, x[k + 1], S44, 0x85845dd1);
                a = II(a, b, c, d, x[k + 8], S41, 0x6fa87e4f);
                d = II(d, a, b, c, x[k + 15], S42, 0xfe2ce6e0);
                c = II(c, d, a, b, x[k + 6], S43, 0xa3014314);
                b = II(b, c, d, a, x[k + 13], S44, 0x4e0811a1);
                a = II(a, b, c, d, x[k + 4], S41, 0xf7537e82);
                d = II(d, a, b, c, x[k + 11], S42, 0xbd3af235);
                c = II(c, d, a, b, x[k + 2], S43, 0x2ad7d2bb);
                b = II(b, c, d, a, x[k + 9], S44, 0xeb86d391);
                a = addUnsigned(a, AA);
                b = addUnsigned(b, BB);
                c = addUnsigned(c, CC);
                d = addUnsigned(d, DD);
            }
            var tempValue = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
            return tempValue.toLowerCase();
        };
        var rotateLeft = function (lValue: number, iShiftBits: number) {
            return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
        };
        var addUnsigned = function (lX: number, lY: number) {
            var lX4, lY4, lX8, lY8, lResult;
            lX8 = lX & 0x80000000;
            lY8 = lY & 0x80000000;
            lX4 = lX & 0x40000000;
            lY4 = lY & 0x40000000;
            lResult = (lX & 0x3fffffff) + (lY & 0x3fffffff);
            if (lX4 & lY4) return lResult ^ 0x80000000 ^ lX8 ^ lY8;
            if (lX4 | lY4) {
                if (lResult & 0x40000000) return lResult ^ 0xc0000000 ^ lX8 ^ lY8;
                else return lResult ^ 0x40000000 ^ lX8 ^ lY8;
            } else {
                return lResult ^ lX8 ^ lY8;
            }
        };
        var F = function (x: number, y: number, z: number) {
            return (x & y) | (~x & z);
        };
        var G = function (x: number, y: number, z: number) {
            return (x & z) | (y & ~z);
        };
        var H = function (x: number, y: number, z: number) {
            return x ^ y ^ z;
        };
        var I = function (x: number, y: number, z: number) {
            return y ^ (x | ~z);
        };
        var FF = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
            a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
            return addUnsigned(rotateLeft(a, s), b);
        };
        var GG = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
            a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
            return addUnsigned(rotateLeft(a, s), b);
        };
        var HH = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
            a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
            return addUnsigned(rotateLeft(a, s), b);
        };
        var II = function (a: number, b: number, c: number, d: number, x: number, s: number, ac: number) {
            a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
            return addUnsigned(rotateLeft(a, s), b);
        };
        var convertToWordArray = function (string: string) {
            var lWordCount;
            var lMessageLength = string.length;
            var lNumberOfWordsTempOne = lMessageLength + 8;
            var lNumberOfWordsTempTwo = (lNumberOfWordsTempOne - (lNumberOfWordsTempOne % 64)) / 64;
            var lNumberOfWords = (lNumberOfWordsTempTwo + 1) * 16;
            var lWordArray = Array(lNumberOfWords - 1);
            var lBytePosition = 0;
            var lByteCount = 0;
            while (lByteCount < lMessageLength) {
                lWordCount = (lByteCount - (lByteCount % 4)) / 4;
                lBytePosition = (lByteCount % 4) * 8;
                lWordArray[lWordCount] = lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition);
                lByteCount++;
            }
            lWordCount = (lByteCount - (lByteCount % 4)) / 4;
            lBytePosition = (lByteCount % 4) * 8;
            lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
            lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
            lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
            return lWordArray;
        };
        var wordToHex = function (lValue: number) {
            var WordToHexValue = "",
                WordToHexValueTemp = "",
                lByte,
                lCount;
            for (lCount = 0; lCount <= 3; lCount++) {
                lByte = (lValue >>> (lCount * 8)) & 255;
                WordToHexValueTemp = "0" + lByte.toString(16);
                WordToHexValue = WordToHexValue + WordToHexValueTemp.substr(WordToHexValueTemp.length - 2, 2);
            }
            return WordToHexValue;
        };
        var uTF8Encode = function (string: string) {
            string = string.toString().replace(/\x0d\x0a/g, "\x0a");
            var output = "";
            for (var n = 0; n < string.length; n++) {
                var c = string.charCodeAt(n);
                if (c < 128) {
                    output += String.fromCharCode(c);
                } else if (c > 127 && c < 2048) {
                    output += String.fromCharCode((c >> 6) | 192);
                    output += String.fromCharCode((c & 63) | 128);
                } else {
                    output += String.fromCharCode((c >> 12) | 224);
                    output += String.fromCharCode(((c >> 6) & 63) | 128);
                    output += String.fromCharCode((c & 63) | 128);
                }
            }
            return output;
        };
        return createMD5String(md5str);
    }
}
